PKSupport -> Thanks for the response. I was able to send the final two addresses by switching browsers...from Chrome to FF. Clearing the cache, deleting, re-entering participants & email addresses had no effect in Chrome. Sigh.
We are using LS via 3rd party hosting service (Blue Host) so I am not entirely sure how upgrading works. This is our first time at the Lime Survey party. I will investigate upgrading and look for "the guide". Thanks for the tip.
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